PROX offers you this original-type piston designed for KTM 125cc engines. With a diameter of 54 mm and a bi-segment design, it offers a good balance between performance, torque and reliability.

Superior quality, it perfectly replaces the original piston without modification. Its design allows for a slightly higher compression ratio (29.5), which improves engine torque, especially at low and mid-range speeds.

This model features two lubrication points to optimize lubrication and ensure longer cylinder and piston life. The skirt has also been reworked to promote gas flow and improve overall engine efficiency.

This piston is therefore ideal for optimizing the top end of the engine while maintaining excellent reliability.

Available sizes:

A: 53.94 mm

B : 53.95 mm

C: 53.96 mm

D : 53.97 mm

E : 53.98 mm

Allow about 15 days for this type of piston.

Fits on:

BETA RR 125 2024

BETA RR 125 2024 Racing

BETA RR 125 2023

BETA RR 125 2023 Racing

BETA RR 125 2022

BETA RR 125 2022 Racing

BETA RR 125 2021

BETA RR 125 2021 Racing

BETA RR 125 2020

BETA RR 125 2020 Racing

BETA RR 125 2019 Racing

BETA RR 125 2019

BETA RR 125 2018

GAS GAS MC 125 2026

GAS GAS MC 125 2025

GAS GAS MC 125 2024

GAS GAS MC 125 2023

GAS GAS MC 125 2022

GAS GAS MC 125 2021

HUSABERG TE 125 2014 EUROPE

HUSABERG TE 125 2013 EUROPE

HUSABERG TE 125 2012 EUROPE

HUSQVARNA TC 125 2026

HUSQVARNA TC 125 2025

HUSQVARNA TC 125 2025 Heritage

HUSQVARNA TC 125 2024

HUSQVARNA TC 125 2023

HUSQVARNA TC 125 2023 Heritage

HUSQVARNA TC 125 2022

HUSQVARNA TC 125 2021

HUSQVARNA TC 125 2020

HUSQVARNA TC 125 2019

HUSQVARNA TC 125 2018

HUSQVARNA TC 125 2017

HUSQVARNA TC 125 2016

HUSQVARNA TC 125 2015

HUSQVARNA TC 125 2014

HUSQVARNA TE 125 2025

HUSQVARNA TE 125 2016

HUSQVARNA TE 125 2015

HUSQVARNA TE 125 2014 EUROPE

HUSQVARNA TX 125 2019

HUSQVARNA TX 125 2018

HUSQVARNA TX 125 2017

KTM EXC 125 2016 Sixdays EUROPE

KTM EXC 125 2016 EUROPE

KTM EXC 125 2015 EUROPE

KTM EXC 125 2015 Sixdays EUROPE

KTM EXC 125 2014 EUROPE

KTM EXC 125 2014 Sixdays EUROPE

KTM EXC 125 2013 EUROPE

KTM EXC 125 2013 Sixdays EUROPE

KTM EXC 125 2012 EUROPE

KTM EXC 125 2012 Sixdays EUROPE

KTM EXC 125 2011 EUROPE

KTM EXC 125 2011 Sixdays EUROPE

KTM EXC 125 2010 Sixdays

KTM EXC 125 2010 Champions Edition

KTM EXC 125 2010

KTM EXC 125 2009 Sixdays

KTM EXC 125 2009

KTM EXC 125 2008 Sixdays

KTM EXC 125 2008

KTM EXC 125 2007 Sixdays

KTM EXC 125 2007

KTM EXC 125 2006

KTM EXC 125 2005

KTM EXC 125 2004

KTM EXC 125 2003

KTM EXC 125 2002

KTM EXC 125 2001

KTM SX 125 2026

KTM SX 125 2025

KTM SX 125 2024

KTM SX 125 2023

KTM SX 125 2022

KTM SX 125 2021

KTM SX 125 2020

KTM SX 125 2019

KTM SX 125 2018

KTM SX 125 2017

KTM SX 125 2016

KTM SX 125 2015

KTM SX 125 2014

KTM SX 125 2013

KTM SX 125 2012

KTM SX 125 2011

KTM SX 125 2010

KTM SX 125 2009

KTM SX 125 2008

KTM SX 125 2007

KTM XC-W 125 2019

KTM XC-W 125 2018

KTM XC-W 125 2017